US4654874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device with a finger activating data input function
Assignee: Casio Computer Co Ltd
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Filing: 1984-10-09
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Granted: 1987-03-31
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Expires: 2004-10-09
Abstract
Abstract An electronic device enters pattern data upon activating a matrix of keys with a finger. A comparing section compares measured data in a counter (register C) for measuring the time interval from the release of a key till the depression of the next key, with a value set in a memory (register E) for storing a predetermined externally set time interval. When the measured data in the counter reaches the set value in the memory, a character recognizing section performs character recognition on the entered data.
Inventors
- 👤 Haruo Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:32
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02; G06F15/0225; G06V; G06V10/00; G06V10/10; G06V10/17
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
215 words
An electronic device for entering pattern data by activating a matrix of keys with a finger, comprising: pattern data input means including a matrix array of keys; means connected to said pattern data input means, for measuring the time interval from the release of a key in the pattern data input means till the depression of a next different key therein; memory means for storing a preset value corresponding to a time interval between characters, including means for enabling a user to enter said preset value in said memory means by a keying-in operation on said input means; comparing means connected to said interval measuring means and said memory means, for comparing counted data of said time interval measuring means with the preset value corresponding to the time interval stored in said memory means; means for performing character recognition when said comparing means detects that the counted data of said time interval measuring means reaches said preset value stored in said memory means; control means connected to said pattern data input means, said time interval measuring means, said memory means, said comparing means, and said character recognition means, for controlling the operation among and of those means; and display means for displaying the recognized character after the character is recognized by said character recognition means.
Claim 2
Dependent Claim
215 words
An electronic device for entering pattern data by activating a matrix of keys with a finger, comprising: pattern data input means including a matrix array of keys; means connected to said pattern data input means, for measuring the time interval from the release of a key in the pattern data input means till the depression of a next different key therein; memory means for storing a preset value corresponding to a time interval between characters, including means for enabling a user to enter said preset value in said memory means by a keying-in operation on said input means; comparing means connected to said interval measuring means and said memory means, for comparing counted data of said time interval measuring means with the preset value corresponding to the time interval stored in said memory means; means for performing character recognition when said comparing means detects that the counted data of said time interval measuring means reaches said preset value stored in said memory means; control means connected to said pattern data input means, said time interval measuring means, said memory means, said comparing means, and said character recognition means, for controlling the operation among and of those means; and display means for displaying the recognized character after the character is recognized by said character recognition means.
Claim 3
Dependent Claim
30 words
The electronic device according to claim 1, in which said character recognition means produces a recognition failure signal when the input data is not coincident with the stored pattern data.
Claim 4
Dependent Claim
28 words
The electronic device according to claim 1, in which said pattern data input means includes means for selecting one of a calculation mode and a finger activating mode.
Claim 5
Dependent Claim
22 words
The electronic device according to claim 1, further including sounding means connected to said control means and for sounding at different frequencies.
Claim 6
Dependent Claim
24 words
The electronic device according to claim 4, in which said sounding means sounds every time said time interval measuring means updates the set value.
Claim 7
Dependent Claim
30 words
The electronic device according to claim 4, in which said sounding means sounds when said time interval measuring means counts a predetermined time interval and a character recognition is finished.
Claim 8
Dependent Claim
46 words
The electronic device according to claim 4, in which, when said character recognition means generates a recognition failure signal, said sounding means responds to a sounding command from said control means which receives said recognition failure signal, and sounds to tell the failure of character recognition.
Claim 9
Dependent Claim
40 words
The electronic device according to claim 1, in which said memory means stores, as a value corresponding to the time interval between characters, a value converted into corresponding code data after the data stored by the keying-in operation is operated.
Claim 10
Dependent Claim
38 words
The electronic device according to claim 1, in which said memory means stores the time interval between characters as a value corresponding to deenergization of a plurality of dot lines provided at a digit in said display means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |